Implement production vertical slice foundation

game/application/input/input_binding_snapshot.gd

@@ -0,0 +1,12 @@
+class_name InputBindingSnapshot
+extends RefCounted
+
+var action_id: StringName
+var label: String
+var binding_text: String
+
+
+func _init(p_action_id: StringName, p_label: String, p_binding_text: String) -> void:
+	action_id = p_action_id
+	label = p_label
+	binding_text = p_binding_text

game/application/input/rebind_result.gd

@@ -0,0 +1,22 @@
+class_name RebindResult
+extends RefCounted
+
+var accepted: bool
+var action_id: StringName
+var binding_text: String
+var conflicting_action_id: StringName
+var message: String
+
+
+func _init(
+	p_accepted: bool,
+	p_action_id: StringName,
+	p_binding_text: String = "",
+	p_conflicting_action_id: StringName = &"",
+	p_message: String = ""
+) -> void:
+	accepted = p_accepted
+	action_id = p_action_id
+	binding_text = p_binding_text
+	conflicting_action_id = p_conflicting_action_id
+	message = p_message